Colourblindness is caused due to
Recessive female chromosome
Dominant female chromosome
Dominant male chromosome
linkage
A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?
Sickle cell-anaemia disorder arises due to
The character of organisms is said to be sex linked when its gene is carried on
Pedigree analysis is very important in human beings because